Table 1.
Results retrieved from the GC-MS analysis of the B. velezensis strain OEE1.
| Retention time (Rt) | Kovat’s Index | Lib Score | Tentative Identification | Plant Growth Promotion (PGP) Effectiveness or Biocontrol Ability | Reference |
|---|---|---|---|---|---|
| 8.981 | 854 | 92.0 | Ethylbenzene | Used as pesticides | [50] |
| 11.473 | 1082 | 93.8 | Phenylethyl Alcohol | Antimicrobial activity, an auto-antibiotic produced by the fungus Candida albicans | [51] |
| 13.909 | 1174 | 84.6 | Indole | As an intercellular signal molecule, indole regulates various aspects of bacterial physiology, including spore formation, plasmid stability, resistance to drugs, biofilm formation and virulence | [52] |
| 16.368 | 1187 | 94.5 | 1-Dodecene | ||
| 18.656 | 1251 | 92.1 | Benzene acetic acid (Phenylacetic acid) | An active auxin (a type of plant hormone), naturally produced by the metapleural gland of most ant species and used as an antimicrobial | |
| 20.942 | 1337 | 82.1 | Eugenol | Zinc oxide eugenol is used for root canal sealing | [53] |
| 21.103 | 1424 | 69.8 | E-Caryophyllene | Widely distributed among plant oils, and reportedly possess acaricidal, insecticidal, repellent, attractive and antifungal properties | [54] |
| 22.116 | 1587 | 93.9 | 1-Hexadecene | ||
| 22.995 | 1478 | 82.1 | β-Selinene (β-Eudesmene) | A sesquiterpene hydrocarbon with a naphthalene skeleton and is a component of celery oil. The autoxidation product of it has antimalarial activity | [55] |
| 23.563 | 1496 | 79.8 | Cyclo(Leu-Pro) | Strongly inhibit mycelia growth of fungus and thereby affecting aflatoxin production | [56] |
| 24.498 | 1627 | 71.2 | 3-Hydroxy-β-damascone | Inducer of NAD(P)H:quinone reductase (QR) activity; novel inhibitors of inducible nitric oxide synthase (iNOS) induction | [57] |
| Rt | Kovat’s Index | Lib Score | Tentative Identification | PGP Effectiveness or Biocontrol Ability | Reference |
| 25.458 | 1864 | 78.5 | N-cetyl alcohol | ||
| 25.897 | 1891 | 92.1 | 1-Nonadecene | ||
| 26.172 | 1908 | 72.5 | Palmitic acid methyl ester | ||
| 30.796 | 1942 | 83.2 | Palmitic acid | ||
| 31.173 | 2070 | 79.3 | 1-Octadecanol (Stearyl alcohol) | ||
| 31.395 | 2073 | 93.6 | Methyl linoleate | ||
| 32.924 | 2084 | 67.1 | Methyl oleate | Identified as a primer pheromone in honeybees | [58] |
| 33.687 | 2138 | 94.1 | Cyclo(Phe-Pro) | A secondary metabolite produced by certain bacteria and fungi controls the expression of genes involved in pathogenicity, cell-to-cell communication by bacteria, It also modulates auxin signaling in plants. | [59] |
| 39.015 | 2704 | 73.5 | Diisooctyl phthalate |